*** Error in `./output': free(): invalid next size (fast): 0x00007ffa340008e0 ***
======= Backtrace: =========
/lib64/libc.so.6(+0x7275f)[0x7ffa3ccf875f]
/lib64/libc.so.6(+0x77fce)[0x7ffa3ccfdfce]
/lib64/libc.so.6(+0x78ce6)[0x7ffa3ccfece6]
./output[0x40237f]
./output[0x404835]
./output[0x4049c6]
./output[0x401bfd]
./output[0x40420b]
./output[0x4041a4]
/usr/lib64/libstdc++.so.6(+0xbedb0)[0x7ffa3d821db0]
/lib64/libpthread.so.0(+0x80a4)[0x7ffa3d0360a4]
/lib64/libc.so.6(clone+0x6d)[0x7ffa3cd6afed]
======= Memory map: ========
00400000-0040a000 r-xp 00000000 08:02 303163872                          /home/fei/kru0096/Downloads/HashTable_c/output
0060a000-0060b000 r--p 0000a000 08:02 303163872                          /home/fei/kru0096/Downloads/HashTable_c/output
0060b000-0060c000 rw-p 0000b000 08:02 303163872                          /home/fei/kru0096/Downloads/HashTable_c/output
01e0e000-8a9df6000 rw-p 00000000 00:00 0                                 [heap]
7ffa2c000000-7ffa2c021000 rw-p 00000000 00:00 0
7ffa2c021000-7ffa30000000 ---p 00000000 00:00 0
7ffa34000000-7ffa34021000 rw-p 00000000 00:00 0
7ffa34021000-7ffa38000000 ---p 00000000 00:00 0
7ffa38b0e000-7ffa38b0f000 ---p 00000000 00:00 0
7ffa38b0f000-7ffa3930f000 rw-p 00000000 00:00 0                          [stack:37936]
7ffa3930f000-7ffa39310000 ---p 00000000 00:00 0
7ffa39310000-7ffa39b10000 rw-p 00000000 00:00 0                          [stack:37935]
7ffa39b10000-7ffa39b11000 ---p 00000000 00:00 0
7ffa39b11000-7ffa3a311000 rw-p 00000000 00:00 0                          [stack:37934]
7ffa3a311000-7ffa3a312000 ---p 00000000 00:00 0
7ffa3a312000-7ffa3ab12000 rw-p 00000000 00:00 0                          [stack:37933]
7ffa3ab12000-7ffa3ab13000 ---p 00000000 00:00 0
7ffa3ab13000-7ffa3b313000 rw-p 00000000 00:00 0
7ffa3b313000-7ffa3b314000 ---p 00000000 00:00 0
7ffa3b314000-7ffa3bb14000 rw-p 00000000 00:00 0
7ffa3bb14000-7ffa3bb15000 ---p 00000000 00:00 0
7ffa3bb15000-7ffa3c315000 rw-p 00000000 00:00 0
7ffa3c315000-7ffa3c316000 ---p 00000000 00:00 0
7ffa3c316000-7ffa3cc86000 rw-p 00000000 00:00 0
7ffa3cc86000-7ffa3ce24000 r-xp 00000000 08:02 402875293                  /lib64/libc-2.19.so
7ffa3ce24000-7ffa3d024000 ---p 0019e000 08:02 402875293                  /lib64/libc-2.19.so
7ffa3d024000-7ffa3d028000 r--p 0019e000 08:02 402875293                  /lib64/libc-2.19.so
7ffa3d028000-7ffa3d02a000 rw-p 001a2000 08:02 402875293                  /lib64/libc-2.19.so
7ffa3d02a000-7ffa3d02e000 rw-p 00000000 00:00 0
7ffa3d02e000-7ffa3d046000 r-xp 00000000 08:02 402703541                  /lib64/libpthread-2.19.so
7ffa3d046000-7ffa3d245000 ---p 00018000 08:02 402703541                  /lib64/libpthread-2.19.so
7ffa3d245000-7ffa3d246000 r--p 00017000 08:02 402703541                  /lib64/libpthread-2.19.so
7ffa3d246000-7ffa3d247000 rw-p 00018000 08:02 402703541                  /lib64/libpthread-2.19.so
7ffa3d247000-7ffa3d24b000 rw-p 00000000 00:00 0
7ffa3d24b000-7ffa3d261000 r-xp 00000000 08:02 402865516                  /lib64/libgcc_s.so.1
7ffa3d261000-7ffa3d460000 ---p 00016000 08:02 402865516                  /lib64/libgcc_s.so.1
7ffa3d460000-7ffa3d461000 r--p 00015000 08:02 402865516                  /lib64/libgcc_s.so.1
7ffa3d461000-7ffa3d462000 rw-p 00016000 08:02 402865516                  /lib64/libgcc_s.so.1
7ffa3d462000-7ffa3d562000 r-xp 00000000 08:02 402875296                  /lib64/libm-2.19.so
7ffa3d562000-7ffa3d761000 ---p 00100000 08:02 402875296                  /lib64/libm-2.19.so
7ffa3d761000-7ffa3d762000 r--p 000ff000 08:02 402875296                  /lib64/libm-2.19.so
7ffa3d762000-7ffa3d763000 rw-p 00100000 08:02 402875296                  /lib64/libm-2.19.so
7ffa3d763000-7ffa3d8d6000 r-xp 00000000 08:02 134353698                  /usr/lib64/libstdc++.so.6.0.21
7ffa3d8d6000-7ffa3dad5000 ---p 00173000 08:02 134353698                  /usr/lib64/libstdc++.so.6.0.21
7ffa3dad5000-7ffa3dadf000 r--p 00172000 08:02 134353698                  /usr/lib64/libstdc++.so.6.0.21
7ffa3dadf000-7ffa3dae1000 rw-p 0017c000 08:02 134353698                  /usr/lib64/libstdc++.so.6.0.21
7ffa3dae1000-7ffa3dae5000 rw-p 00000000 00:00 0
7ffa3dae5000-7ffa3db06000 r-xp 00000000 08:02 404080209                  /lib64/ld-2.19.so
7ffa3db68000-7ffa3dcde000 rw-p 00000000 00:00 0
7ffa3dd02000-7ffa3dd05000 rw-p 00000000 00:00 0
7ffa3dd05000-7ffa3dd06000 r--p 00020000 08:02 404080209                  /lib64/ld-2.19.so
7ffa3dd06000-7ffa3dd07000 rw-p 00021000 08:02 404080209                  /lib64/ld-2.19.so
7ffa3dd07000-7ffa3dd08000 rw-p 00000000 00:00 0
7ffca0aad000-7ffca0ace000 rw-p 00000000 00:00 0                          [stack]
7ffca0b42000-7ffca0b44000 r-xp 00000000 00:00 0                          [vdso]
ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0                  [vsyscall]
Aborted